Finding the Fourth Proportional to 9,472.32, 13,082.40 and 9,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.32 : 13,082.40 = 9,342.72 : x
2. Step 2: Convert to fraction form
   9,472.32/13,082.40 = 9,342.72/x
3. Step 3: Cross multiply
   9,472.32x = 13,082.40 × 9,342.72
4. Step 4: Simplify right side
   9,472.32x = 122,225,200.13
5. Step 5: Solve for x
   x = 122,225,200.13/9,472.32
6. Step 6: Final answer
   x = 12,903.41